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-   -   homebuilt turbine (https://www.rcuniverse.com/forum/rc-jets-120/9725924-homebuilt-turbine.html)

AdriFlyBoy 05-11-2010 09:57 AM

homebuilt turbine
 
I am starting this project.I found 2 great deals on net.
1. JM09(complete kit for 586 pounds)
2.Building a larger UT160 turbine from jetmax
Whch one?

NUNU 05-11-2010 10:06 AM

RE: homebuilt turbine
 
jetmax stuff is awesome

AdriFlyBoy 05-11-2010 01:13 PM

RE: homebuilt turbine
 
How much thrust will 70mm turbine and compressor(UT160ZA) produce?I have read somewhere around 14-18kg.

EDIT:You don't have to answer to previous question,I found an answer.
But there is another question.Where can I buy fuel sticks(12 of them)on wheel and combustion chamber for UT160ZA?


dave.windymiller 05-11-2010 04:32 PM

RE: homebuilt turbine
 
Having built a turbine, the sense of satisfaction and pride when it runs is huge. Enjoy!

PDR200 05-12-2010 12:42 AM

RE: homebuilt turbine
 
1 Attachment(s)
I've nearly finished my UT-160-za engines. I will post my specs when there complete. If you are in need of parts for this engine the Designer sells them on his web page.

http://www.ut160.de.tl/Shop.htm

Cheers,
Paul

chrigui 05-12-2010 01:33 AM

RE: homebuilt turbine
 
I built the UT-160

16,2 kg - 120.000 rpm

i fit the engine in my f-84g

erazz 05-12-2010 01:55 AM

RE: homebuilt turbine
 
The UT160 is probably easier to build and performs great.

AdriFlyBoy 05-12-2010 08:26 AM

RE: homebuilt turbine
 
I will build 70mm turbine.That means 14-18kg?
Now,where can I fing fuel sticks with ring(I prefer 12 instead of 6)?

chrigui 05-12-2010 08:41 AM

RE: homebuilt turbine
 
12 stick is better....

see here : http://www.jetflydemoteam.com/JF-160.html

http://www.jetflydemoteam.com/PHOTO/...ges/13_jpg.jpg
http://www.jetflydemoteam.com/PHOTO/...es/13a_jpg.jpg

SCALECRAFT 05-12-2010 08:46 AM

RE: homebuilt turbine
 
Can you guys please post costs. I noticed no one posts costs. One of the main reasons for me to build one on my own.

Steve

PDR200 05-12-2010 08:46 AM

RE: homebuilt turbine
 
The 70mm turbine will produce approximately 14 to 18kg thrust. The UT-160 has 12 Vaporizer tubes. These can be purchased from the designer of the UT-160 or material can be purchased from Wren (inconal tube dia 6mm).

I have more photos of the tubes but I'm at work at the moment I'll post when I get home.

Cheers,
Paul

PDR200 05-12-2010 08:57 AM

RE: homebuilt turbine
 
Its difficult to estimate the cost. It depends on how much of it you build yourself. If you want to speed up the building process you can buy pre-machined components. Also the type of ECU you use can make a big difference in cost (Manuel start, auto start, kero start).

At a rough guess it think mine cost about half of a commercial engine:D

Cheers,
Paul

Harley Condra 05-12-2010 09:55 AM

RE: homebuilt turbine
 
FYI
The AMA has developed regulations that AMA members should follow when operating a kit built or home made turbine engine.
These regs were only put in place to cover safety concerns that could arise in home made and kit built turbine engine construction and operations.

In order to satisfy these requirements, and operate this engine at an AMA affiliated club field, or at an AMA event, and to make sure that your AMA insurance and turbine waiver are valid, (if you have one) the engine must be qualified per AMA PDF Documents 510A, 510C and possibly 510B. These documents are available at www.modelaircraft.org.

Thanks,

basimpsn 05-12-2010 10:36 AM

RE: homebuilt turbine
 
Nice very nice [sm=thumbup.gif] Its hard to believe that small tail tuned to produce that much power

AdriFlyBoy 05-12-2010 02:44 PM

RE: homebuilt turbine
 
Here are the parts: http://www.ut160.de.tl/Shop.htm
I counted that it will cost me about 500 euros.

chrigui 05-13-2010 01:39 AM

RE: homebuilt turbine
 
i think that the cost is over 1000 euro + euro for ecu pump and accessories

Jgwright 05-13-2010 02:30 AM

RE: homebuilt turbine
 
Actually I counted 1862 euros and that was without the case and tailcone and Festo fittings etc . This is quite an expensive route to a turbine especially if you do not have all the equipment and skills to make the remaining parts. As advised by several people the best option is to buy a low hours second hand turbine such as a JetCat or a new engine such as the JetCat P80se or Kingtech 80 if you can afford it.

John

S_Ciambra 05-14-2010 11:43 AM

RE: homebuilt turbine
 
Hi,
which is difference between UT160 and UT160-ZA?
Thanks in advance
Best regards

chrigui 05-14-2010 02:09 PM

RE: homebuilt turbine
 
diffusor, combustion chamber, 12 stick instead original 9

jetrichie 05-15-2010 05:31 PM

RE: homebuilt turbine
 


ORIGINAL: Jgwright

Actually I counted 1862 euros and that was without the case and tailcone and Festo fittings etc . This is quite an expensive route to a turbine especially if you do not have all the equipment and skills to make the remaining parts. As advised by several people the best option is to buy a low hours second hand turbine such as a JetCat or a new engine such as the JetCat P80se or Kingtech 80 if you can afford it.

John
Curious to know why an X wren person recomends to buy a jetcat?

AdriFlyBoy 05-21-2010 02:16 PM

RE: homebuilt turbine
 
Well,I didn't counted combustion chamber,ecu and fuel pump.Without them,it is around 500-600 euros.But with them,it is around 1000.
BTW,I recommend 70mm turbine wheel because it can give you 14-18kg of thrust instead of 66mm which produce 8-12kg of thrust.

AdriFlyBoy 05-27-2010 03:05 PM

RE: homebuilt turbine
 


Now I counted all correctly.It is 1171 euros(with projet Hornet III ECU and GSU set included).
Now,what do you think,how many time I have to spend to get it working?

PS:I will use it in 1:8 Tamjet F16.Maybe a little bit over powered,but it will be ballistic!</p>

PeterCantropus 05-27-2010 03:52 PM

RE: homebuilt turbine
 


ORIGINAL: AdriFlyBoy



Now I counted all correctly.It is 1171 euros(with projet Hornet III ECU and GSU set included).
Now,what do you think,how many time I have to spend to get it working?

Depends of how fast and good you are making the parts you don't purchase. If you purchase all the parts needed the total cost is close to 2000EUR, you can buy a ready to run, brand name engine for this price.

AdriFlyBoy 05-30-2010 01:43 PM

RE: homebuilt turbine
 
Is this good decision?
Turbine(most of the parts): http://www.google.hr/url?sa=t&amp;source...mkKmlzufQuMSXw
Here is:4 mainly items(compressor,turbine wheel,NGV,shaft)
Combustion chamber is additional 200$ and 12 sticks(do I need 12 or 9 is enough?) are 150$.
That is 710$.Then I need ECU,GSU and fuel pump.That is 350$.
Everything:1060$.
And another question:Will this produce 13kg of thrust(as is said)?

AdriFlyBoy 05-31-2010 01:03 PM

RE: homebuilt turbine
 
Anyone?

siclick33 05-31-2010 01:15 PM

RE: homebuilt turbine
 
That isn't all the parts you need. Have a look on their other page:

http://www.wmmodel-ws.com/Html/Produ...tPath=0,93,130,

The cost now starts to add up.


In my opinion there are 3 ways to go,

Build your own engine - can be cheaper but requires time, skill, patience and tools.
Assemble an engine from a kit - something like the Wren 70 kit is very easy to put together.
Buy a built engine - either new or second-hand.

From your posts it appears that you are trying to save money by 'assembling' an engine from parts intended for home builders. In my opinion this will only end in disaster. I know you have been told this before but I would look at either a complete proven kit (I can only vouch for Wren as it is the only one I have built) or a ready-to-run engine (either new or second hand).

AdriFlyBoy 05-31-2010 02:40 PM

RE: homebuilt turbine
 
Cost is 150$ more(diffusor and housing),OK.
Why do you think it will end up in the disaster?Many modellers has built turbines?Besides,I have plans for building the turbine.

siclick33 05-31-2010 03:03 PM

RE: homebuilt turbine
 
+ tailcone + shaft tunnel + bearings and probably other things that I can't remember off hand.

That's another $125 so you're now looking at $1345 and that's probably not everything.

The reason I say it might end in disaster is that, unless you know exactly what you need and what you're buying, you might spend a load of money and still not be able to build an engine that runs.

You may come across issues when assembling parts like this that you hadn't thought about (e.g. how are you going to balance it?). If you buy a Wren kit or a built engine then you are much more likely to be successful.

Spending a bit more money now might seem a waste of money but I think it would be worth it.


AdriFlyBoy 06-02-2010 03:09 PM

RE: homebuilt turbine
 
Is that really 13kg of thrust?
And where I can buy fuel sticks?

PS:Yeah,you got it.I want save up some money cuz I want to pay more for sophisticated electronics in my jet.

1Eye 06-02-2010 03:59 PM

RE: homebuilt turbine
 


ORIGINAL: AdriFlyBoy

How much thrust will 70mm turbine and compressor(UT160ZA) produce?I have read somewhere around 14-18kg.

So, what are you gonna do with this turbine? Just run it on the bench or . . . ?? As Harley mentioned, there is an exact process to get it accepted by the AMA here in the US.

AdriFlyBoy 06-03-2010 07:43 AM

RE: homebuilt turbine
 
I will put it in jet.In Croatia we don't have such rules.

quote from previous post:
Is that really 13kg of thrust?
And where I can buy fuel sticks?

AdriFlyBoy 06-05-2010 07:03 AM

RE: homebuilt turbine
 
Ok,guys,I decided this way.Two hours of drive away from me is schweighofer.I will save up more money and I will buy JetCat P80SE for 1699 euros or JetCat P120SX for 2499 euros.
At least I will have full auto start brand name engine,and it is cheaper than in US.

AdriFlyBoy 06-06-2010 01:22 PM

RE: homebuilt turbine
 
Now I can't make a proper decision.I decided to buy P120SX,but then I saw Behotec JB165(16,5kg of thrust)for 2598 euros.
So,is it worth of paying extra 100 euros for JB165 over P120SX and does Behotec has good quality as JetCat?


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